The amount of H which was evolved from H-containing Fe-Si alloys was determined. These results were used to calculate the diffusion coefficients (table 81).
K.M.Shvarev, B.A.Baum, R.A.Ryabov, T.K.Kostina, M.A.Ryss: Trudy Ural. Politekhn. Inst., 1970, 186, 61-4
Table 81
Diffusivity of H in Fe-Si
Si (wt%) | Temperature (C) | D (cm2/s) |
90 | 25 | 7.0 x 10-7 |
90 | 700 | 5.2 x 10-5 |
75 | 25 | 4.5 x 10-7 |
75 | 700 | 6.5 x 10-5 |
65 | 25 | 4.5 x 10-7 |
65 | 700 | 6.2 x 10-5 |
45 | 25 | 4.0 x 10-7 |
45 | 700 | 5.5 x 10-5 |
18 | 25 | 6.0 x 10-7 |
18 | 700 | 5.0 x 10-5 |